A seat may comprise a contact surface that may contact a person sitting in the seat. One or more elongated depressions may be disposed in the contact surface and, together with the person, form at least one duct wherein fluid may flow. The seat may be connected to a heating, ventilation, or air conditioning (HVAC) system which may cause fluid to flow into the at least one duct to regulate the temperature of the person. Such fluid may then dispense into a passenger compartment and change a temperature thereof.